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    <title>控制四相步进电机</title>
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  <body>
    <div id="base" class="">

      <!-- Unnamed (矩形) -->
      <div id="u4077" class="ax_default _一级标题">
        <div id="u4077_div" class=""></div>
        <div id="u4077_text" class="text ">
          <p><span>所需硬件：</span></p>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4078" class="ax_default" data-left="60" data-top="135" data-width="97" data-height="120">

        <!-- Unnamed (矩形) -->
        <div id="u4079" class="ax_default box_1">
          <div id="u4079_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4080" class="ax_default box_1">
          <div id="u4080_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4081" class="ax_default ellipse">
          <img id="u4081_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4082" class="ax_default ellipse">
          <img id="u4082_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4083" class="ax_default ellipse">
          <img id="u4083_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4084" class="ax_default ellipse">
          <img id="u4084_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4085" class="ax_default label">
          <div id="u4085_div" class=""></div>
          <div id="u4085_text" class="text ">
            <p><span>A+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4086" class="ax_default label">
          <div id="u4086_div" class=""></div>
          <div id="u4086_text" class="text ">
            <p><span>B+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4087" class="ax_default label">
          <div id="u4087_div" class=""></div>
          <div id="u4087_text" class="text ">
            <p><span>B-</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4088" class="ax_default label">
          <div id="u4088_div" class=""></div>
          <div id="u4088_text" class="text ">
            <p><span>A-</span></p>
          </div>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4089" class="ax_default line">
          <img id="u4089_img" class="img " src="images/控制四相步进电机/u4089.png"/>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4090" class="ax_default label">
        <div id="u4090_div" class=""></div>
        <div id="u4090_text" class="text ">
          <p><span>步进电机</span></p>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4091" class="ax_default" data-left="356" data-top="169" data-width="225" data-height="89">

        <!-- Unnamed (水平线) -->
        <div id="u4092" class="ax_default line">
          <img id="u4092_img" class="img " src="images/驱动180°舵机/u1777.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4093" class="ax_default line">
          <img id="u4093_img" class="img " src="images/驱动180°舵机/u1776.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4094" class="ax_default label">
          <div id="u4094_div" class=""></div>
          <div id="u4094_text" class="text ">
            <p><span>-</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4095" class="ax_default label">
          <div id="u4095_div" class=""></div>
          <div id="u4095_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4096" class="ax_default box_1">
          <div id="u4096_div" class=""></div>
          <div id="u4096_text" class="text ">
            <p><span>电池</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4097" class="ax_default box_1">
          <div id="u4097_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4098" class="ax_default box_1">
          <div id="u4098_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4099" class="ax_default box_1">
          <div id="u4099_div" class=""></div>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4100" class="ax_default label">
        <div id="u4100_div" class=""></div>
        <div id="u4100_text" class="text ">
          <p><span>9V电池盒</span></p>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4101" class="ax_default" data-left="391" data-top="359" data-width="119" data-height="54">

        <!-- Unnamed (矩形) -->
        <div id="u4102" class="ax_default box_1">
          <div id="u4102_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4103" class="ax_default line">
          <img id="u4103_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4104" class="ax_default line">
          <img id="u4104_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4105" class="ax_default line">
          <img id="u4105_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4106" class="ax_default line">
          <img id="u4106_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4107" class="ax_default ellipse">
          <img id="u4107_img" class="img " src="images/四角开关/u54.png"/>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4108" class="ax_default label">
        <div id="u4108_div" class=""></div>
        <div id="u4108_text" class="text ">
          <p><span>四角按钮开关</span></p>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4109" class="ax_default" data-left="425" data-top="494" data-width="40" data-height="16">

        <!-- Unnamed (矩形) -->
        <div id="u4110" class="ax_default box_1">
          <div id="u4110_div" class=""></div>
          <div id="u4110_text" class="text ">
            <p><span>10KΩ</span></p>
          </div>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4111" class="ax_default label">
        <div id="u4111_div" class=""></div>
        <div id="u4111_text" class="text ">
          <p><span>电阻</span></p>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4112" class="ax_default" data-left="60" data-top="330" data-width="180" data-height="180">

        <!-- Unnamed (矩形) -->
        <div id="u4113" class="ax_default box_1">
          <div id="u4113_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4114" class="ax_default box_1">
          <div id="u4114_div" class=""></div>
          <div id="u4114_text" class="text ">
            <p><span>L298N</span></p>
          </div>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4115" class="ax_default line">
          <img id="u4115_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4116" class="ax_default line">
          <img id="u4116_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4117" class="ax_default line">
          <img id="u4117_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4118" class="ax_default line">
          <img id="u4118_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4119" class="ax_default line">
          <img id="u4119_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4120" class="ax_default line">
          <img id="u4120_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4121" class="ax_default line">
          <img id="u4121_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4122" class="ax_default line">
          <img id="u4122_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4123" class="ax_default line">
          <img id="u4123_img" class="img " src="images/控制直流电机/u3494.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4124" class="ax_default line">
          <img id="u4124_img" class="img " src="images/控制直流电机/u3503.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4125" class="ax_default line">
          <img id="u4125_img" class="img " src="images/控制直流电机/u3503.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4126" class="ax_default line">
          <img id="u4126_img" class="img " src="images/控制直流电机/u3505.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4127" class="ax_default line">
          <img id="u4127_img" class="img " src="images/控制直流电机/u3505.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4128" class="ax_default line">
          <img id="u4128_img" class="img " src="images/控制直流电机/u3505.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4129" class="ax_default line">
          <img id="u4129_img" class="img " src="images/控制直流电机/u3505.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4130" class="ax_default line">
          <img id="u4130_img" class="img " src="images/控制直流电机/u3505.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4131" class="ax_default line">
          <img id="u4131_img" class="img " src="images/控制直流电机/u3505.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4132" class="ax_default line">
          <img id="u4132_img" class="img " src="images/控制直流电机/u3505.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4133" class="ax_default box_1">
          <div id="u4133_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4134" class="ax_default line">
          <img id="u4134_img" class="img " src="images/控制直流电机/u3513.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4135" class="ax_default line">
          <img id="u4135_img" class="img " src="images/控制直流电机/u3513.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4136" class="ax_default line">
          <img id="u4136_img" class="img " src="images/控制直流电机/u3515.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4137" class="ax_default ellipse">
          <img id="u4137_img" class="img " src="images/控制直流电机/u3516.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4138" class="ax_default ellipse">
          <img id="u4138_img" class="img " src="images/控制直流电机/u3516.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4139" class="ax_default line">
          <img id="u4139_img" class="img " src="images/控制直流电机/u3518.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4140" class="ax_default box_1">
          <div id="u4140_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4141" class="ax_default ellipse">
          <img id="u4141_img" class="img " src="images/控制直流电机/u3520.png"/>
          <div id="u4141_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4142" class="ax_default ellipse">
          <img id="u4142_img" class="img " src="images/控制直流电机/u3520.png"/>
          <div id="u4142_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4143" class="ax_default ellipse">
          <img id="u4143_img" class="img " src="images/控制直流电机/u3520.png"/>
          <div id="u4143_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4144" class="ax_default label">
          <div id="u4144_div" class=""></div>
          <div id="u4144_text" class="text ">
            <p><span>12V</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4145" class="ax_default label">
          <div id="u4145_div" class=""></div>
          <div id="u4145_text" class="text ">
            <p><span>GND</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4146" class="ax_default label">
          <div id="u4146_div" class=""></div>
          <div id="u4146_text" class="text ">
            <p><span>5V</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4147" class="ax_default box_1">
          <div id="u4147_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4148" class="ax_default box_1">
          <div id="u4148_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4149" class="ax_default box_1">
          <div id="u4149_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4150" class="ax_default box_1">
          <div id="u4150_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4151" class="ax_default box_1">
          <div id="u4151_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4152" class="ax_default box_1">
          <div id="u4152_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4153" class="ax_default box_1">
          <div id="u4153_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4154" class="ax_default box_1">
          <div id="u4154_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4155" class="ax_default box_1">
          <div id="u4155_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4156" class="ax_default label">
          <div id="u4156_div" class=""></div>
          <div id="u4156_text" class="text ">
            <p><span>IN1</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4157" class="ax_default label">
          <div id="u4157_div" class=""></div>
          <div id="u4157_text" class="text ">
            <p><span>IN2</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4158" class="ax_default label">
          <div id="u4158_div" class=""></div>
          <div id="u4158_text" class="text ">
            <p><span>IN3</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4159" class="ax_default label">
          <div id="u4159_div" class=""></div>
          <div id="u4159_text" class="text ">
            <p><span>IN4</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4160" class="ax_default label">
          <div id="u4160_div" class=""></div>
          <div id="u4160_text" class="text ">
            <p><span>ENA</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4161" class="ax_default label">
          <div id="u4161_div" class=""></div>
          <div id="u4161_text" class="text ">
            <p><span>ENB</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4162" class="ax_default box_1">
          <div id="u4162_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4163" class="ax_default ellipse">
          <img id="u4163_img" class="img " src="images/控制直流电机/u3520.png"/>
          <div id="u4163_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4164" class="ax_default ellipse">
          <img id="u4164_img" class="img " src="images/控制直流电机/u3520.png"/>
          <div id="u4164_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4165" class="ax_default label">
          <div id="u4165_div" class=""></div>
          <div id="u4165_text" class="text ">
            <p><span>OUT1</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4166" class="ax_default label">
          <div id="u4166_div" class=""></div>
          <div id="u4166_text" class="text ">
            <p><span>OUT2</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4167" class="ax_default box_1">
          <div id="u4167_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4168" class="ax_default ellipse">
          <img id="u4168_img" class="img " src="images/控制直流电机/u3520.png"/>
          <div id="u4168_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4169" class="ax_default ellipse">
          <img id="u4169_img" class="img " src="images/控制直流电机/u3520.png"/>
          <div id="u4169_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4170" class="ax_default label">
          <div id="u4170_div" class=""></div>
          <div id="u4170_text" class="text ">
            <p><span>OUT4</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4171" class="ax_default label">
          <div id="u4171_div" class=""></div>
          <div id="u4171_text" class="text ">
            <p><span>OUT3</span></p>
          </div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4172" class="ax_default line">
          <img id="u4172_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4173" class="ax_default box_1">
          <div id="u4173_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4174" class="ax_default line">
          <img id="u4174_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4175" class="ax_default box_1">
          <div id="u4175_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4176" class="ax_default line">
          <img id="u4176_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4177" class="ax_default box_1">
          <div id="u4177_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4178" class="ax_default line">
          <img id="u4178_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4179" class="ax_default box_1">
          <div id="u4179_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4180" class="ax_default line">
          <img id="u4180_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4181" class="ax_default box_1">
          <div id="u4181_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4182" class="ax_default line">
          <img id="u4182_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4183" class="ax_default box_1">
          <div id="u4183_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4184" class="ax_default ellipse">
          <img id="u4184_img" class="img " src="images/控制直流电机/u3563.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4185" class="ax_default ellipse">
          <img id="u4185_img" class="img " src="images/控制直流电机/u3564.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4186" class="ax_default ellipse">
          <img id="u4186_img" class="img " src="images/控制直流电机/u3563.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4187" class="ax_default ellipse">
          <img id="u4187_img" class="img " src="images/控制直流电机/u3563.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4188" class="ax_default line">
          <img id="u4188_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4189" class="ax_default box_1">
          <div id="u4189_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4190" class="ax_default line">
          <img id="u4190_img" class="img " src="images/控制直流电机/u3551.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4191" class="ax_default box_1">
          <div id="u4191_div" class=""></div>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4192" class="ax_default label">
        <div id="u4192_div" class=""></div>
        <div id="u4192_text" class="text ">
          <p><span>L298N电机驱动模块</span></p>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4193" class="ax_default _一级标题">
        <div id="u4193_div" class=""></div>
        <div id="u4193_text" class="text ">
          <p><span>硬件接线：</span></p>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4194" class="ax_default _一级标题">
        <div id="u4194_div" class=""></div>
        <div id="u4194_text" class="text ">
          <p><span>示例代码：</span></p>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4195" class="ax_default _文本段落">
        <div id="u4195_div" class=""></div>
        <div id="u4195_text" class="text ">
          <p><span>#define IN1 5 </span></p><p><span>#define IN2 4</span></p><p><span>#define IN3 3</span></p><p><span>#define IN4 2</span></p><p><span>#define BTN 6 </span></p><p><span><br></span></p><p><span>int _step =0;</span></p><p><span>int dir = 0;</span></p><p><span>int buttonState = 0;</span></p><p><span>int motor_speed = 5;</span></p><p><span>bool ispressed = false;</span></p><p><span><br></span></p><p><span>void setup() {</span></p><p><span>//初始化各IO,模式为OUTPUT 输出模式</span></p><p><span>pinMode(IN1,OUTPUT);</span></p><p><span>pinMode(IN2,OUTPUT);</span></p><p><span>pinMode(IN3,OUTPUT);</span></p><p><span>pinMode(IN4,OUTPUT);</span></p><p><span>pinMode(BTN,INPUT);</span></p><p><span>}</span></p><p><span>&nbsp;</span></p><p><span>void loop() {</span></p><p><span>&nbsp; buttonState = digitalRead(BTN);</span></p><p><span>&nbsp; if (buttonState == HIGH)</span></p><p><span>&nbsp; {</span></p><p><span>&nbsp;&nbsp; &nbsp; ispressed = true;</span></p><p><span>&nbsp; }</span></p><p><span>&nbsp; if(buttonState == LOW &amp;&amp; ispressed == true)</span></p><p><span>&nbsp; {</span></p><p><span>&nbsp;&nbsp; &nbsp; ispressed = false;</span></p><p><span>&nbsp;&nbsp; &nbsp; change_dir();</span></p><p><span>&nbsp; }</span></p><p><span>&nbsp; if(dir == 0)</span></p><p><span>&nbsp; {</span></p><p><span>&nbsp;&nbsp;&nbsp; up();</span></p><p><span>&nbsp; }</span></p><p><span>&nbsp; if(dir == 1)</span></p><p><span>&nbsp; {</span></p><p><span>&nbsp;&nbsp;&nbsp; down(); </span></p><p><span>&nbsp; }</span></p><p><span>}</span></p><p><span><br></span></p><p><span>void change_dir()</span></p><p><span>{</span></p><p><span>&nbsp; if(dir == 0)</span></p><p><span>&nbsp; {</span></p><p><span>&nbsp;&nbsp;&nbsp; dir = 1;</span></p><p><span>&nbsp; }</span></p><p><span>&nbsp; else</span></p><p><span>&nbsp; {</span></p><p><span>&nbsp;&nbsp;&nbsp; dir = 0;</span></p><p><span>&nbsp; }&nbsp; </span></p><p><span>}</span></p><p><span><br></span></p><p><span>void down()</span></p><p><span>&nbsp; {</span></p><p><span>&nbsp;&nbsp;&nbsp; switch(_step){</span></p><p><span>&nbsp;&nbsp;&nbsp; case 0:</span></p><p><span>&nbsp;&nbsp;&nbsp; //stepperSpeed++;</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, HIGH);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 1:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, HIGH);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 2:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 3:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 4:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 5:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; case 6:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 7:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, HIGH);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; default:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp; }</span></p><p><span>&nbsp;&nbsp; _step++;</span></p><p><span>&nbsp;</span></p><p><span>&nbsp; if(_step&gt;7)</span></p><p><span>&nbsp; {&nbsp; &nbsp; </span></p><p><span>&nbsp;&nbsp;&nbsp; _step=0;&nbsp; </span></p><p><span>&nbsp; }</span></p><p><span><br></span></p><p><span>&nbsp; delay(motor_speed);</span></p><p><span>&nbsp; } </span></p><p><span><br></span></p><p><span>&nbsp; void up()</span></p><p><span>{&nbsp;&nbsp; </span></p><p><span>&nbsp; switch(_step){</span></p><p><span>&nbsp;&nbsp;&nbsp; case 0:</span></p><p><span>&nbsp;&nbsp;&nbsp; //stepperSpeed++;</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 1:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 2:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 3:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 4:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 5:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, HIGH);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; case 6:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, HIGH);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; case 7:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, HIGH);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, HIGH);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp;&nbsp;&nbsp; default:</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN1, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN2, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN3, LOW);</span></p><p><span>&nbsp;&nbsp; &nbsp;&nbsp; digitalWrite(IN4, LOW);</span></p><p><span>&nbsp;&nbsp;&nbsp; break;</span></p><p><span>&nbsp; }</span></p><p><span>&nbsp;&nbsp;&nbsp; _step++;</span></p><p><span>&nbsp;</span></p><p><span>&nbsp; if(_step&gt;7)</span></p><p><span>&nbsp; {&nbsp; &nbsp; </span></p><p><span>&nbsp;&nbsp;&nbsp; _step=0;&nbsp; </span></p><p><span>&nbsp; }</span></p><p><span>&nbsp;</span></p><p><span>&nbsp; delay(motor_speed);</span></p><p><span>}</span></p>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4196" class="ax_default _一级标题">
        <div id="u4196_div" class=""></div>
        <div id="u4196_text" class="text ">
          <p><span>运行结果：</span></p>
        </div>
      </div>

      <!-- Unnamed (矩形) -->
      <div id="u4197" class="ax_default label">
        <div id="u4197_div" class=""></div>
        <div id="u4197_text" class="text ">
          <p><span>按下按钮时电机正转，再按下按钮时电机反转。每按一次按钮电机转动方向变换一次。</span></p>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4198" class="ax_default" data-left="271" data-top="751" data-width="97" data-height="120">

        <!-- Unnamed (矩形) -->
        <div id="u4199" class="ax_default box_1">
          <div id="u4199_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4200" class="ax_default box_1">
          <div id="u4200_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4201" class="ax_default ellipse">
          <img id="u4201_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4202" class="ax_default ellipse">
          <img id="u4202_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4203" class="ax_default ellipse">
          <img id="u4203_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4204" class="ax_default ellipse">
          <img id="u4204_img" class="img " src="images/控制四相步进电机/u4081.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4205" class="ax_default label">
          <div id="u4205_div" class=""></div>
          <div id="u4205_text" class="text ">
            <p><span>A+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4206" class="ax_default label">
          <div id="u4206_div" class=""></div>
          <div id="u4206_text" class="text ">
            <p><span>B+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4207" class="ax_default label">
          <div id="u4207_div" class=""></div>
          <div id="u4207_text" class="text ">
            <p><span>B-</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4208" class="ax_default label">
          <div id="u4208_div" class=""></div>
          <div id="u4208_text" class="text ">
            <p><span>A-</span></p>
          </div>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4209" class="ax_default line">
          <img id="u4209_img" class="img " src="images/控制四相步进电机/u4089.png"/>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4210" class="ax_default" data-left="50" data-top="1344" data-width="225" data-height="89">

        <!-- Unnamed (水平线) -->
        <div id="u4211" class="ax_default line">
          <img id="u4211_img" class="img " src="images/驱动180°舵机/u1777.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4212" class="ax_default line">
          <img id="u4212_img" class="img " src="images/驱动180°舵机/u1776.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4213" class="ax_default label">
          <div id="u4213_div" class=""></div>
          <div id="u4213_text" class="text ">
            <p><span>-</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4214" class="ax_default label">
          <div id="u4214_div" class=""></div>
          <div id="u4214_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4215" class="ax_default box_1">
          <div id="u4215_div" class=""></div>
          <div id="u4215_text" class="text ">
            <p><span>电池</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4216" class="ax_default box_1">
          <div id="u4216_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4217" class="ax_default box_1">
          <div id="u4217_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4218" class="ax_default box_1">
          <div id="u4218_div" class=""></div>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4219" class="ax_default" data-left="524" data-top="998" data-width="283" data-height="391">

        <!-- Unnamed (矩形) -->
        <div id="u4220" class="ax_default box_1">
          <div id="u4220_div" class=""></div>
          <div id="u4220_text" class="text ">
            <p><span>Arduino </span></p><p><span>UNO</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4221" class="ax_default box_1">
          <div id="u4221_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4222" class="ax_default box_1">
          <div id="u4222_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4223" class="ax_default box_1">
          <div id="u4223_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4224" class="ax_default box_1">
          <div id="u4224_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4225" class="ax_default box_1">
          <div id="u4225_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4226" class="ax_default box_1">
          <div id="u4226_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4227" class="ax_default box_1">
          <div id="u4227_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4228" class="ax_default box_1">
          <div id="u4228_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4229" class="ax_default label">
          <div id="u4229_div" class=""></div>
          <div id="u4229_text" class="text ">
            <p><span>SCL</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4230" class="ax_default box_1">
          <div id="u4230_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4231" class="ax_default label">
          <div id="u4231_div" class=""></div>
          <div id="u4231_text" class="text ">
            <p><span>SDA</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4232" class="ax_default box_1">
          <div id="u4232_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4233" class="ax_default label">
          <div id="u4233_div" class=""></div>
          <div id="u4233_text" class="text ">
            <p><span>AREF</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4234" class="ax_default box_1">
          <div id="u4234_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4235" class="ax_default label">
          <div id="u4235_div" class=""></div>
          <div id="u4235_text" class="text ">
            <p><span>GND</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4236" class="ax_default box_1">
          <div id="u4236_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4237" class="ax_default label">
          <div id="u4237_div" class=""></div>
          <div id="u4237_text" class="text ">
            <p><span>13</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4238" class="ax_default box_1">
          <div id="u4238_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4239" class="ax_default label">
          <div id="u4239_div" class=""></div>
          <div id="u4239_text" class="text ">
            <p><span>12</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4240" class="ax_default box_1">
          <div id="u4240_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4241" class="ax_default label">
          <div id="u4241_div" class=""></div>
          <div id="u4241_text" class="text ">
            <p><span>~11</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4242" class="ax_default box_1">
          <div id="u4242_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4243" class="ax_default label">
          <div id="u4243_div" class=""></div>
          <div id="u4243_text" class="text ">
            <p><span>~10</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4244" class="ax_default box_1">
          <div id="u4244_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4245" class="ax_default label">
          <div id="u4245_div" class=""></div>
          <div id="u4245_text" class="text ">
            <p><span>~9</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4246" class="ax_default box_1">
          <div id="u4246_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4247" class="ax_default label">
          <div id="u4247_div" class=""></div>
          <div id="u4247_text" class="text ">
            <p><span>8</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4248" class="ax_default box_1">
          <div id="u4248_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4249" class="ax_default label">
          <div id="u4249_div" class=""></div>
          <div id="u4249_text" class="text ">
            <p><span>7</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4250" class="ax_default box_1">
          <div id="u4250_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4251" class="ax_default label">
          <div id="u4251_div" class=""></div>
          <div id="u4251_text" class="text ">
            <p><span>~6</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4252" class="ax_default box_1">
          <div id="u4252_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4253" class="ax_default label">
          <div id="u4253_div" class=""></div>
          <div id="u4253_text" class="text ">
            <p><span>~5</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4254" class="ax_default box_1">
          <div id="u4254_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4255" class="ax_default label">
          <div id="u4255_div" class=""></div>
          <div id="u4255_text" class="text ">
            <p><span>4</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4256" class="ax_default box_1">
          <div id="u4256_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4257" class="ax_default label">
          <div id="u4257_div" class=""></div>
          <div id="u4257_text" class="text ">
            <p><span>~3</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4258" class="ax_default box_1">
          <div id="u4258_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4259" class="ax_default label">
          <div id="u4259_div" class=""></div>
          <div id="u4259_text" class="text ">
            <p><span>2</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4260" class="ax_default box_1">
          <div id="u4260_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4261" class="ax_default label">
          <div id="u4261_div" class=""></div>
          <div id="u4261_text" class="text ">
            <p style="font-size:7px;"><span style="font-size:10px;">TX</span><span>→</span><span style="font-size:10px;">1</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4262" class="ax_default box_1">
          <div id="u4262_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4263" class="ax_default label">
          <div id="u4263_div" class=""></div>
          <div id="u4263_text" class="text ">
            <p style="font-size:7px;"><span style="font-size:10px;">RX</span><span>→</span><span style="font-size:10px;">0</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4264" class="ax_default label">
          <div id="u4264_div" class=""></div>
          <div id="u4264_text" class="text ">
            <p><span>NOT USED</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4265" class="ax_default box_1">
          <div id="u4265_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4266" class="ax_default label">
          <div id="u4266_div" class=""></div>
          <div id="u4266_text" class="text ">
            <p><span>IOREF</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4267" class="ax_default box_1">
          <div id="u4267_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4268" class="ax_default label">
          <div id="u4268_div" class=""></div>
          <div id="u4268_text" class="text ">
            <p><span>RESET</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4269" class="ax_default box_1">
          <div id="u4269_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4270" class="ax_default label">
          <div id="u4270_div" class=""></div>
          <div id="u4270_text" class="text ">
            <p><span>3.3V</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4271" class="ax_default box_1">
          <div id="u4271_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4272" class="ax_default label">
          <div id="u4272_div" class=""></div>
          <div id="u4272_text" class="text ">
            <p><span>5V</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4273" class="ax_default box_1">
          <div id="u4273_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4274" class="ax_default label">
          <div id="u4274_div" class=""></div>
          <div id="u4274_text" class="text ">
            <p><span>GND</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4275" class="ax_default box_1">
          <div id="u4275_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4276" class="ax_default label">
          <div id="u4276_div" class=""></div>
          <div id="u4276_text" class="text ">
            <p><span>GND</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4277" class="ax_default box_1">
          <div id="u4277_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4278" class="ax_default label">
          <div id="u4278_div" class=""></div>
          <div id="u4278_text" class="text ">
            <p><span>VIN</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4279" class="ax_default box_1">
          <div id="u4279_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4280" class="ax_default label">
          <div id="u4280_div" class=""></div>
          <div id="u4280_text" class="text ">
            <p><span>A0</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4281" class="ax_default box_1">
          <div id="u4281_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4282" class="ax_default label">
          <div id="u4282_div" class=""></div>
          <div id="u4282_text" class="text ">
            <p><span>A1</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4283" class="ax_default box_1">
          <div id="u4283_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4284" class="ax_default label">
          <div id="u4284_div" class=""></div>
          <div id="u4284_text" class="text ">
            <p><span>A2</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4285" class="ax_default box_1">
          <div id="u4285_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4286" class="ax_default label">
          <div id="u4286_div" class=""></div>
          <div id="u4286_text" class="text ">
            <p><span>A3</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4287" class="ax_default box_1">
          <div id="u4287_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4288" class="ax_default label">
          <div id="u4288_div" class=""></div>
          <div id="u4288_text" class="text ">
            <p><span>A4</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4289" class="ax_default box_1">
          <div id="u4289_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4290" class="ax_default label">
          <div id="u4290_div" class=""></div>
          <div id="u4290_text" class="text ">
            <p><span>A5</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4291" class="ax_default box_1">
          <div id="u4291_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4292" class="ax_default box_1">
          <div id="u4292_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4293" class="ax_default ellipse">
          <img id="u4293_img" class="img " src="images/四角开关/u137.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4294" class="ax_default ellipse">
          <img id="u4294_img" class="img " src="images/四角开关/u137.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4295" class="ax_default box_1">
          <div id="u4295_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4296" class="ax_default box_1">
          <div id="u4296_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4297" class="ax_default ellipse">
          <img id="u4297_img" class="img " src="images/四角开关/u141.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4298" class="ax_default ellipse">
          <img id="u4298_img" class="img " src="images/四角开关/u141.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4299" class="ax_default box_1">
          <div id="u4299_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4300" class="ax_default box_1">
          <div id="u4300_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4301" class="ax_default box_1">
          <div id="u4301_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4302" class="ax_default box_1">
          <div id="u4302_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4303" class="ax_default box_1">
          <div id="u4303_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4304" class="ax_default box_1">
          <div id="u4304_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4305" class="ax_default box_1">
          <div id="u4305_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4306" class="ax_default box_1">
          <div id="u4306_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4307" class="ax_default ellipse">
          <img id="u4307_img" class="img " src="images/四角开关/u151.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4308" class="ax_default ellipse">
          <img id="u4308_img" class="img " src="images/四角开关/u151.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4309" class="ax_default ellipse">
          <img id="u4309_img" class="img " src="images/四角开关/u151.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4310" class="ax_default ellipse">
          <img id="u4310_img" class="img " src="images/四角开关/u151.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4311" class="ax_default box_1">
          <div id="u4311_div" class=""></div>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4312" class="ax_default line">
          <img id="u4312_img" class="img " src="images/四角开关/u156.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4313" class="ax_default box_1">
          <div id="u4313_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4314" class="ax_default box_1">
          <div id="u4314_div" class=""></div>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4315" class="ax_default line">
          <img id="u4315_img" class="img " src="images/四角开关/u156.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4316" class="ax_default line">
          <img id="u4316_img" class="img " src="images/四角开关/u156.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4317" class="ax_default box_1">
          <div id="u4317_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4318" class="ax_default box_1">
          <div id="u4318_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4319" class="ax_default line">
          <img id="u4319_img" class="img " src="images/四角开关/u163.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4320" class="ax_default ellipse">
          <img id="u4320_img" class="img " src="images/四角开关/u164.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4321" class="ax_default ellipse">
          <img id="u4321_img" class="img " src="images/四角开关/u164.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4322" class="ax_default ellipse">
          <img id="u4322_img" class="img " src="images/四角开关/u164.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4323" class="ax_default ellipse">
          <img id="u4323_img" class="img " src="images/四角开关/u164.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4324" class="ax_default ellipse">
          <img id="u4324_img" class="img " src="images/四角开关/u168.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4325" class="ax_default line">
          <img id="u4325_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4326" class="ax_default line">
          <img id="u4326_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4327" class="ax_default line">
          <img id="u4327_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4328" class="ax_default line">
          <img id="u4328_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4329" class="ax_default line">
          <img id="u4329_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4330" class="ax_default line">
          <img id="u4330_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4331" class="ax_default line">
          <img id="u4331_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4332" class="ax_default line">
          <img id="u4332_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4333" class="ax_default line">
          <img id="u4333_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4334" class="ax_default line">
          <img id="u4334_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4335" class="ax_default line">
          <img id="u4335_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4336" class="ax_default line">
          <img id="u4336_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4337" class="ax_default line">
          <img id="u4337_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4338" class="ax_default line">
          <img id="u4338_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4339" class="ax_default line">
          <img id="u4339_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4340" class="ax_default line">
          <img id="u4340_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4341" class="ax_default line">
          <img id="u4341_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4342" class="ax_default line">
          <img id="u4342_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4343" class="ax_default line">
          <img id="u4343_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4344" class="ax_default line">
          <img id="u4344_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4345" class="ax_default line">
          <img id="u4345_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4346" class="ax_default line">
          <img id="u4346_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4347" class="ax_default line">
          <img id="u4347_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4348" class="ax_default line">
          <img id="u4348_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4349" class="ax_default line">
          <img id="u4349_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4350" class="ax_default line">
          <img id="u4350_img" class="img " src="images/四角开关/u169.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4351" class="ax_default box_1">
          <div id="u4351_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4352" class="ax_default box_1">
          <div id="u4352_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4353" class="ax_default box_1">
          <div id="u4353_div" class=""></div>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4354" class="ax_default" data-left="203" data-top="956" data-width="250" data-height="250">

        <!-- Unnamed (矩形) -->
        <div id="u4355" class="ax_default box_1">
          <div id="u4355_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4356" class="ax_default box_1">
          <div id="u4356_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4357" class="ax_default ellipse">
          <img id="u4357_img" class="img " src="images/控制直流电机/u3731.png"/>
          <div id="u4357_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4358" class="ax_default box_1">
          <div id="u4358_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4359" class="ax_default ellipse">
          <img id="u4359_img" class="img " src="images/控制直流电机/u3731.png"/>
          <div id="u4359_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4360" class="ax_default box_1">
          <div id="u4360_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4361" class="ax_default ellipse">
          <img id="u4361_img" class="img " src="images/控制直流电机/u3731.png"/>
          <div id="u4361_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4362" class="ax_default box_1">
          <div id="u4362_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4363" class="ax_default ellipse">
          <img id="u4363_img" class="img " src="images/控制直流电机/u3731.png"/>
          <div id="u4363_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4364" class="ax_default box_1">
          <div id="u4364_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4365" class="ax_default ellipse">
          <img id="u4365_img" class="img " src="images/控制直流电机/u3731.png"/>
          <div id="u4365_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4366" class="ax_default box_1">
          <div id="u4366_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4367" class="ax_default ellipse">
          <img id="u4367_img" class="img " src="images/控制直流电机/u3731.png"/>
          <div id="u4367_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4368" class="ax_default box_1">
          <div id="u4368_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4369" class="ax_default box_1">
          <div id="u4369_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4370" class="ax_default ellipse">
          <img id="u4370_img" class="img " src="images/控制直流电机/u3731.png"/>
          <div id="u4370_text" class="text ">
            <p><span>+</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4371" class="ax_default box_1">
          <div id="u4371_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4372" class="ax_default box_1">
          <div id="u4372_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4373" class="ax_default box_1">
          <div id="u4373_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4374" class="ax_default box_1">
          <div id="u4374_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4375" class="ax_default box_1">
          <div id="u4375_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4376" class="ax_default box_1">
          <div id="u4376_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4377" class="ax_default box_1">
          <div id="u4377_div" class=""></div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4378" class="ax_default box_1">
          <div id="u4378_div" class=""></div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4379" class="ax_default ellipse">
          <img id="u4379_img" class="img " src="images/控制直流电机/u3753.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4380" class="ax_default ellipse">
          <img id="u4380_img" class="img " src="images/控制直流电机/u3753.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4381" class="ax_default box_1">
          <div id="u4381_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4382" class="ax_default line">
          <img id="u4382_img" class="img " src="images/控制直流电机/u3756.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4383" class="ax_default box_1">
          <div id="u4383_div" class=""></div>
          <div id="u4383_text" class="text ">
            <p><span>L298N</span></p>
          </div>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4384" class="ax_default line">
          <img id="u4384_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4385" class="ax_default line">
          <img id="u4385_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4386" class="ax_default line">
          <img id="u4386_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4387" class="ax_default line">
          <img id="u4387_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4388" class="ax_default line">
          <img id="u4388_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4389" class="ax_default line">
          <img id="u4389_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4390" class="ax_default line">
          <img id="u4390_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4391" class="ax_default line">
          <img id="u4391_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4392" class="ax_default line">
          <img id="u4392_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4393" class="ax_default line">
          <img id="u4393_img" class="img " src="images/控制直流电机/u3758.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4394" class="ax_default line">
          <img id="u4394_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4395" class="ax_default line">
          <img id="u4395_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4396" class="ax_default line">
          <img id="u4396_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4397" class="ax_default line">
          <img id="u4397_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4398" class="ax_default line">
          <img id="u4398_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4399" class="ax_default line">
          <img id="u4399_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4400" class="ax_default line">
          <img id="u4400_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4401" class="ax_default line">
          <img id="u4401_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4402" class="ax_default line">
          <img id="u4402_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (垂直线) -->
        <div id="u4403" class="ax_default line">
          <img id="u4403_img" class="img " src="images/控制直流电机/u3768.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4404" class="ax_default label">
          <div id="u4404_div" class=""></div>
          <div id="u4404_text" class="text ">
            <p><span>OUT1</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4405" class="ax_default label">
          <div id="u4405_div" class=""></div>
          <div id="u4405_text" class="text ">
            <p><span>OUT2</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4406" class="ax_default label">
          <div id="u4406_div" class=""></div>
          <div id="u4406_text" class="text ">
            <p><span>OUT3</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4407" class="ax_default label">
          <div id="u4407_div" class=""></div>
          <div id="u4407_text" class="text ">
            <p><span>OUT4</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4408" class="ax_default box_1">
          <div id="u4408_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4409" class="ax_default line">
          <img id="u4409_img" class="img " src="images/控制直流电机/u3783.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4410" class="ax_default line">
          <img id="u4410_img" class="img " src="images/控制直流电机/u3783.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4411" class="ax_default label">
          <div id="u4411_div" class=""></div>
          <div id="u4411_text" class="text ">
            <p><span>12V</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4412" class="ax_default label">
          <div id="u4412_div" class=""></div>
          <div id="u4412_text" class="text ">
            <p><span>GND</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4413" class="ax_default label">
          <div id="u4413_div" class=""></div>
          <div id="u4413_text" class="text ">
            <p><span>5V</span></p>
          </div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4414" class="ax_default ellipse">
          <img id="u4414_img" class="img " src="images/控制直流电机/u3788.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4415" class="ax_default ellipse">
          <img id="u4415_img" class="img " src="images/控制直流电机/u3788.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4416" class="ax_default ellipse">
          <img id="u4416_img" class="img " src="images/控制直流电机/u3788.png"/>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4417" class="ax_default ellipse">
          <img id="u4417_img" class="img " src="images/控制直流电机/u3788.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4418" class="ax_default line">
          <img id="u4418_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4419" class="ax_default box_1">
          <div id="u4419_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4420" class="ax_default line">
          <img id="u4420_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4421" class="ax_default box_1">
          <div id="u4421_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4422" class="ax_default line">
          <img id="u4422_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4423" class="ax_default box_1">
          <div id="u4423_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4424" class="ax_default line">
          <img id="u4424_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4425" class="ax_default box_1">
          <div id="u4425_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4426" class="ax_default line">
          <img id="u4426_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4427" class="ax_default box_1">
          <div id="u4427_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4428" class="ax_default line">
          <img id="u4428_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4429" class="ax_default box_1">
          <div id="u4429_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4430" class="ax_default line">
          <img id="u4430_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4431" class="ax_default box_1">
          <div id="u4431_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4432" class="ax_default line">
          <img id="u4432_img" class="img " src="images/控制直流电机/u3792.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4433" class="ax_default box_1">
          <div id="u4433_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4434" class="ax_default line">
          <img id="u4434_img" class="img " src="images/控制直流电机/u3808.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4435" class="ax_default label">
          <div id="u4435_div" class=""></div>
          <div id="u4435_text" class="text ">
            <p><span>IN1</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4436" class="ax_default label">
          <div id="u4436_div" class=""></div>
          <div id="u4436_text" class="text ">
            <p><span>IN2</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4437" class="ax_default label">
          <div id="u4437_div" class=""></div>
          <div id="u4437_text" class="text ">
            <p><span>IN3</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4438" class="ax_default label">
          <div id="u4438_div" class=""></div>
          <div id="u4438_text" class="text ">
            <p><span>IN4</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4439" class="ax_default label">
          <div id="u4439_div" class=""></div>
          <div id="u4439_text" class="text ">
            <p><span>ENA</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4440" class="ax_default label">
          <div id="u4440_div" class=""></div>
          <div id="u4440_text" class="text ">
            <p><span>ENB</span></p>
          </div>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4441" class="ax_default" data-left="548" data-top="909" data-width="40" data-height="16">

        <!-- Unnamed (矩形) -->
        <div id="u4442" class="ax_default box_1">
          <div id="u4442_div" class=""></div>
          <div id="u4442_text" class="text ">
            <p><span>10KΩ</span></p>
          </div>
        </div>
      </div>

      <!-- Unnamed (组 合) -->
      <div id="u4443" class="ax_default" data-left="621" data-top="894" data-width="119" data-height="65">

        <!-- Unnamed (矩形) -->
        <div id="u4444" class="ax_default box_1">
          <div id="u4444_div" class=""></div>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4445" class="ax_default line">
          <img id="u4445_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4446" class="ax_default line">
          <img id="u4446_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4447" class="ax_default line">
          <img id="u4447_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (水平线) -->
        <div id="u4448" class="ax_default line">
          <img id="u4448_img" class="img " src="images/四角开关/u46.png"/>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4449" class="ax_default label">
          <div id="u4449_div" class=""></div>
          <div id="u4449_text" class="text ">
            <p><span>0</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4450" class="ax_default label">
          <div id="u4450_div" class=""></div>
          <div id="u4450_text" class="text ">
            <p><span>1</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4451" class="ax_default label">
          <div id="u4451_div" class=""></div>
          <div id="u4451_text" class="text ">
            <p><span>2</span></p>
          </div>
        </div>

        <!-- Unnamed (矩形) -->
        <div id="u4452" class="ax_default label">
          <div id="u4452_div" class=""></div>
          <div id="u4452_text" class="text ">
            <p><span>3</span></p>
          </div>
        </div>

        <!-- Unnamed (椭圆形) -->
        <div id="u4453" class="ax_default ellipse">
          <img id="u4453_img" class="img " src="images/四角开关/u54.png"/>
        </div>
      </div>

      <!-- Unnamed (连接线) -->
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